By Rotation Of Work Part Patents (Class 29/240)
  • Patent number: 4092881
    Abstract: An apparatus for making-up and breaking a threaded connection between threaded tubular members, including a turnable chuck and a non-turnable chuck, each of which can be releasably clamped around its companion threaded tubular member, rotation of the turnable chuck in one direction making up the threaded connection, whereas rotation of the turnable chuck in the opposite direction breaking the threaded connection.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: June 6, 1978
    Assignee: Christensen, Inc.
    Inventors: Rainer Jurgens, Alfred Ostertag
  • Patent number: 4091850
    Abstract: An apparatus designed to attach sheets, preferably insulating sheets of e.g. mineral wool to an underlying layer, such as profiled sheet metal, by using centrally apertured washers and screws that are driven through the washer and the insulating sheet and into the underlying layer, thus securing the insulating sheet thereto. The apparatus which is run across the insulating sheet, comprises means for feeding the washers, one at a time, to the desired points of attachment on the sheet, means for time and place controlled feeding of screws to the washers already deposited in place, and a drill means arranged to engage said screws so as to drive them down, through the insulating sheet and into the underlying layer.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: May 30, 1978
    Inventor: Birger Kjolsrud
  • Patent number: 4084460
    Abstract: An air powered hand tool having combined therein nut running and crimping mechanism in which a common cam member is motor rotated to effect run down of a work nut about a stud and is piston driven to effect crimping of the nut in locking relation to the stud; in which an indicator visually indicates to the operator completion of the crimping action; and in which a stop prevents frictional locking of the cam member in the crimping action; and in which the stud is enabled to rise a considerable distance above the nut as the latter is run down.
    Type: Grant
    Filed: March 4, 1977
    Date of Patent: April 18, 1978
    Inventor: Nicholas J. Garofalo
  • Patent number: 4078458
    Abstract: A screw extractor utilizes a twist drill affixed to one end of an extractor bit having a shank portion suitable for grasping by the chuck end of an electric drill. In use, the drill causes a hole to be formed along the length of the body of the screw to be extracted. Continued rotation in a selected direction of the assembly causes the extractor bit to grasp the walls of the hole. The screw is easily removed without requiring the user to first drill a hole and then manually remove the screw utilizing a separate extractor bit.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: March 14, 1978
    Inventor: Ray Berendzen
  • Patent number: 4065845
    Abstract: A device for changing bore crowns on a drill rod including a bore crown magazine member and means for automatically stopping and locking the magazine member in a desired rotated position.
    Type: Grant
    Filed: April 21, 1975
    Date of Patent: January 3, 1978
    Assignee: Oy Tampella AB
    Inventors: Rolf Strom, Veikko Heikkila, Leo Hakkinen
  • Patent number: 4062389
    Abstract: A screw tightening apparatus comprising a motor-driven tool, a screw magazine for screws affixed to a strip-like carrier, and a screw advancing and tightening means for advancing the screws one at a time to a standby position in which a motor-driven bit may engage the screw for applying the same. A bell crank has a spring arm for advancing the screw strip and a drive arm driven by a projection on a plunger against the force of a feed spring to a cocked position, preparatory to advancement of the screw strip, the cocked position being maintained by a pivoted pawl which has a hook that locks the bell crank in such cocked position. A second projection on the plunger member engages the pawl to effect unlocking thereof near the end of a retracting stroke of the plunger member, whereby the feed spring drives the bell crank to advance the strip. A novel means for unlocking a spring-loaded axially slidable lock sleeve is provided.
    Type: Grant
    Filed: February 3, 1976
    Date of Patent: December 13, 1977
    Assignee: Bulten-Kanthal AB
    Inventor: Sixten H. Lejdegard
  • Patent number: 4058884
    Abstract: An improved pneumatically operated automatic screw driver system for affixing screw devices into objects. The inverted screw-driving system utilizes a locator guide and locator to pre-position and align a screw device relative to the object that is being driven into. Drawing the object against the locator and the pre-positioned screw automatically imparts rotation to the aligned screw even before contact is made between the screw and the object. The construction of the locator and locator guide is such to absorb the initial torque developed by the driver, and the locator is spring-loaded within the locator guide so as to maintain the driver in the operably "off" position until the locator guide is depressed to activate the air motor and thus rotate the screw device.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: November 22, 1977
    Inventors: Ralph P. Lydon, William A. Weismueller, Sr.
  • Patent number: 4057888
    Abstract: Apparatus is disclosed for interconnection of threaded members such as nuts and bolts. Components can be used in combination whereby nuts and bolts are automatically supplied, properly aligned, and threaded together for rapid assembly on parts having preformed openings for the bolts.
    Type: Grant
    Filed: August 9, 1976
    Date of Patent: November 15, 1977
    Assignee: Lewis Industries, Inc.
    Inventor: Robert G. Gottlieb
  • Patent number: 4057887
    Abstract: Apparatus for disconnecting the lower threaded end of an upper section from the upper threaded end of a lower section of pipe string extending through the bore of an underwater wellhead.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: November 15, 1977
    Assignee: Cameron Iron Works, Inc.
    Inventors: Marvin R. Jones, Paul E. Helfer
  • Patent number: 4053970
    Abstract: A preload adapter for use with a lockbit installation gun having a nose assembly to install a fastener having a threaded engagement section to be engaged by an internally threaded nut and a pulling section projecting beyond the threaded engagement section in a hole through a work piece so that the lockbolt installation gun can exert an axial preload on the fastener while the nut is tightened onto the threaded engagement section.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: October 18, 1977
    Inventor: John O. King, Jr.
  • Patent number: 4051587
    Abstract: A pile handling tool is supported at the upper end ofa tubular guide, and includes a jacking mechanism for advancing a pile longitudinally relative to the guide, and a mast projecting upwardly above the jacking mechanism and carrying an aligning structure for laterally engaging a pile and holding it in properly aligned position with respect to the guide. The mast is desirably mounted for retracting movement from an upwardly projecting active position to a laterally retracted inactive position. The jacking mechanism may be constructed to rotate one of two successive pile sections relative to the other to complete a connection therebetween.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: October 4, 1977
    Assignee: Varco International, Inc.
    Inventor: George I. Boyadjieff
  • Patent number: 4048687
    Abstract: Automatic assembling method to screw a nut on a bolt comprises steps of detecting a position of a bolt which is maintained by a supporter, and of positioning in rough a nut thereto by a positioning mechanism, in which the nut is supported by an attachment coupled with a motor through an elastic mechanism, which is capable of deformation in both directions of an axis and a radius. The nut, then is movably pressed against the bolt and rotated by the motor. When the nut is not screwed on the bolt, the positioning mechanism changes its position in two dimensions so that the nut is maintained movably pressed against the bolt and the nut is rotated again. The changing position of the positioning mechanism will be continued until the nut is screwed on the bolt.
    Type: Grant
    Filed: December 2, 1975
    Date of Patent: September 20, 1977
    Assignee: Hitachi, Ltd.
    Inventors: Kanji Kato, Tatsuo Goto, Tadao Inoyama
  • Patent number: 4043016
    Abstract: Apparatus to unscrew a rotary part from a second part, as for example to remove a securing ring from a telephone receiver, comprises:A. first means to receive the second part in position for unscrewing of the rotary part which faces downwardly,B. second means to releasably grip and rotate the rotary part in an unscrewing direction while the second part is in said position, and subsequently to release the unscrewed rotary part,C. third means to block rotation of the second part while the rotary part is rotated in unscrewing direction relative to the second part,D. said first and second means located to allow the unscrewed and released rotary part to drop free of the second means, for collection.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: August 23, 1977
    Assignee: Collins Machinery Corporation
    Inventor: Robert D. Elkin
  • Patent number: 3997962
    Abstract: Means are provided to remove the high turbine rotor in a twin spool gas turbine engine without requiring a major disassembly of the entire engine particularly where the low shaft is "bottled" so that it cannot be removed axially from the engine, which means includes a tool adapted to fit between the narrow annular space between the shafts to torsionally couple the low rotor shaft and high rotor coupling nut, such that torquing the low rotor shaft uncouples the high turbine rotor.
    Type: Grant
    Filed: June 6, 1975
    Date of Patent: December 21, 1976
    Assignee: United Technologies Corporation
    Inventors: Kenneth S. Kleitz, Loren H. White
  • Patent number: 3986241
    Abstract: An in place bearing staking device having a conventional roller staking tool and a backup tool positioned adjacent a bearing in an assembly part. An air motor driven drive unit rotates the staking tool as the tool is drawn toward the backup tool by a drive unit. A draw bar passes through the staking tool, bearing backup tool, drive unit and feed unit. The relative positions of the parts on the draw bar is determined by the particular application. Various adapters and spacers may be provided as needed.
    Type: Grant
    Filed: November 18, 1975
    Date of Patent: October 19, 1976
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Emil P. Ruppe
  • Patent number: 3983616
    Abstract: This invention relates to an apparatus for moving a plurality of two-piece canning jar-type lids in series to a feed mechanism in the form of a magazine which will single-line the caps and maintain them in assembled position. The single-lining mechanism is designed to feed lids into the path of movement of a plurality of containers, also moving in series on their sides with their axes horizontal. The caps or lids are carried at an angle to the path of movement of the finish of the jars such as that the finish of the jars or containers will each individually remove a cap from the supply of caps. The caps are then retained on the finish of the jar and are moved with the jar, in a linear path, with the caps being rotated by frictional engagement and thereby threaded onto the finish of the containers.
    Type: Grant
    Filed: January 21, 1976
    Date of Patent: October 5, 1976
    Assignee: Owens-Illinois, Inc.
    Inventor: Charles W. Duke
  • Patent number: 3971421
    Abstract: An air-powered, self-feeding screw driving tool and screw-containing pods capable of being assembled into a continuous belt of screw-containing rods for use with the tool. The belt of screw-containing pods are coiled within a canister for selective feeding therefrom by an air-powered pawl operated star wheel. The pods are sequentially positioned forward of the bit of a carriage mounted air-powered screwdriver which is selectively operated in coordinated relationship with the orientation of the screw-containing pods by a common air source utilizing a single trigger control.Each of the screw-containing pods has means therein to retain a screw and to guide the screw as it is being driven into the workpiece.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: July 27, 1976
    Assignee: Triad Fastener Corporation
    Inventor: Harold E. Damratowski
  • Patent number: 3959869
    Abstract: Apparatus which enables grounding, connection and disconnection of high voltage electrical connectors from a safely remote location includes a grounding device for making a ground connection to the conductor of a high voltage cable through the contact of the connector itself and a coupling device for selectively coupling the grounding device to an insulated tool, such as a hot-stick, for installation and removal of the grounding device and the grounded electrical connector with the insulated tool.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: June 1, 1976
    Assignee: Amerace Corporation
    Inventors: Carl W. Wyman, Charles E. Andersen
  • Patent number: 3960191
    Abstract: An attachment for a portable power screwdriver allowing a workman to drive screws from a stand-up position. A telescoping driving tube is associated with a power driver and the tube being joined to a feed tube in the region of a nose section. The feed tube includes an escapement device which is responsive to a reciprocating movement of a cam fixed on an upper driving tube portion relative to a lower driving tube portion to ensure a non-jamming feeding of fasteners to the nosepiece.
    Type: Grant
    Filed: June 17, 1975
    Date of Patent: June 1, 1976
    Assignee: Illinois Tool Works Inc.
    Inventor: Pierre Charles Murray
  • Patent number: 3946483
    Abstract: An apparatus for and method of removing a flexible tubular conduit from around an associated elongated rigid supporting mandrel which is at least several feet in length is provided wherein the mandrel and its conduit is supported on a support structure whereupon the conduit and mandrel are relatively moved axially to remove the mandrel from within the conduit.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: March 30, 1976
    Assignee: Dayco Corporation
    Inventors: Homer N. Holden, James P. Hunt, Vernon D. Browning, Edward L. Hoglen, Donald L. Kleykamp
  • Patent number: 3939920
    Abstract: A tightening method and system for practicing same are disclosed herein for tightening a fastener to a desired axial load. According to the method, torque is applied to the fastener until it is tightened to its yield point and either the torque applied at the yield point or the angular rotation of the fastener at the yield point are determined and are used to determine the axial load acting on the joint assembly and these determined characteristics are used to determine either the torque or angular rotation required to tighten the fastener to the desired load. Thereafter, torque is again applied to the fastener and when the actual torque being applied or actual angular rotation of the fastener substantially equals that required to tighten the fastener to the desired load, the application of torque is discontinued.
    Type: Grant
    Filed: September 19, 1974
    Date of Patent: February 24, 1976
    Assignee: Standard Pressed Steel Co.
    Inventors: Russell J. Hardiman, Stanley K. Smith
  • Patent number: 3930808
    Abstract: An automatic collet hinge/screw placement machine comprising a reservoir for bulk storage of screws, a vibrator segregating the screws into a plurality of magazines and an escapement mechanism for dispensing a set of screws essentially concurrently in time, the machine further comprising a table upon which the work, e.g., a cabinet door, is placed between stop structure for correctly locating the work. A hinge-holding/screw-placing head containing a collet for each screw of the set is mounted upon a reciprocating frame whereby the head is pneumatically lowered to position a hinge and a set of screws for placement following which the screws are inserted into the work through apertures in the hinge using a driver mechanism comprised of universal joints for each screw.
    Type: Grant
    Filed: February 7, 1975
    Date of Patent: January 6, 1976
    Assignee: Royal Industries, Inc.
    Inventors: Leslie R. Miller, John D. McKenney
  • Patent number: 3930297
    Abstract: A fastener feed assembly for a tool such as a power screwdriver having a drive member such as a rotatable bit includes a base fixed to the tool and a nose assembly slidably related to the base. The nose assembly includes a workpiece engaging surface, and when the tool is moved toward the workpiece during a fastener driving operation, the base moves toward the nose assembly. A return spring separates the base and nose assembly when the tool is withdrawn away from the workpiece. A strip of fasteners is fed from a magazine along a feed path through the nose assembly with sequential fasteners located in a drive position. Normally the drive member is spaced from a fastener in the drive position. During movement of the tool toward the workpiece in a driving operation, the drive member moves into engagement with a fastener in the drive position, and then continues to move in order to drive the fastener into the workpiece. A pawl is engageable with the strip in order to advance the strip along the feed path.
    Type: Grant
    Filed: November 5, 1973
    Date of Patent: January 6, 1976
    Assignee: Duo-Fast Corporation
    Inventors: Frank R. Potucek, Allen R. Obergfell
  • Patent number: RE29448
    Abstract: .Iadd.Method and apparatus for spin-welding thermoplastic articles in which two axially mating sections are driven in rotation relative to each other and then axially abutted in mating relationship. One of the two mating sections is chucked to an inertia member which is brought up to speed by a rotary drive. The rotary drive is uncoupled as the sections are moved into axial abuttment and the braking of the inertia member by the axial abuttment of the sections is transformed into frictional heat which welds the sections to each other. Apparatus for spin welding sections on a production line basis is disclosed. .Iaddend.
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: October 18, 1977
    Assignee: Koehring Company
    Inventors: Gaylord W. Brown, Donald J. Rise, Robert T. Johnson